Slide fastener



v Aug 8, 1944 I. soLns'rru-:IN l 2,355,152

SLIDE FASTENER Filed Dec. 17. 1942 2 Sheets-Sheet 1 {9]3 Eig-5.. 415132829,3 l3- IN V EN TOR.

.ATTORNEY Aug 8, 1944- l. GoLDsTElN 2,355,152Y

SLIDE FAS TENER Filed Dec. 17, 1942 2 Sheets-Sheet 2 IN V EN TOR.

A TTORNEY Patenred Aug. s, 1944 UNITED STATES PATENT OFFICE 2,355,152 ysLmE-FAsTENER Isidore Goldstein, Brooklyn, N. Y. Application December17, 1942, serialvNo. 469,311

8 Claims.

This invention relates to new and useful improvements in a slidefastener.

More particularly, the invention proposes a new slide fastener whichessentially consists of a bottom 4flexible strip having a plurality ofspherical buttons along its length, a top exible strip havingbuttonholes for said buttons, and a slideI for buttoning and unbuttoningsaid buttons. v f

An important feature of the invention resides in the construction of theslide. It is characterized by a iiat c-shaped member having top andbottom at wall portions for engaging upon the edge portion'of saidbottom strip and provided with certain members which will button andunbutton said buttons when the slide is moved forwards and rearwards.

More specifically, a bridge-like member is proposed to be mounted on theouter edge of the top wall portion of saidC-shaped member for engagingover the edge portion of the top strip. It is proposed that thisvbridge-like member be provided with a semi-tubular portion for holdingdown said top strip on said ybottom strip a'nd for forming a passage forsaid buttons when said strips and slide are relatively movedlongitudinally of each other. It is further proposed that a hollowsemi-tubular portion be disposed upon the top wall portion of saidU-shaped member for said buttons to pass through when said slide ismoved relative to said strips, and it is proposed that this semi-tubularportion be located to the front of said bridge-like member and have aninclined rear end for progressively lifting said top strip oil saidbuttons' when the slide is moved in one direction, and dropping said topstrip on said buttons when the slide is moved in the other direction.'I'his action will-accomplish the un buttoning and buttoning, asrequired.

Still further the invention contemplates novel Vmeans for slidablyconnecting the slide uponpsaid strips.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a perspective View of a slide fastener constructedin-accordance with-this invention.`

Fig. 2 is a fragmentary enlarged sectional view taken on the line 2-2 ofFig. 1.

` sectional view taken on the line 6-6 of Fig. 4.

Fig. 7`is a fragmentary perspective view of a portion of the bottomstrip, per se.

Fig. 8 is a fragmentary sectional view'similar to Fig. 3 butillustrating amodified construction.

Fig. 9 is a perspective view of disclosed in the modified formillustrated in Fig. 8.

Fig. 10 is a fragmentary perspective view of the bottom strip used intheform of the invention disclosed in Fig. 8. u

Fig. 11 is an elevational'view of a slide fastener constructed accordingto a modified form of this invention.

Fig. 12 is a. fragmentary longitudinal sectional view taken on the lineI2-I2 of Fig. 11.

Fig. 13 is a plan view of the slide, per se, shown in Figs. 11 and 12.

Fig. 14 is a side elevational view looking in the direction of the lineII-II of Fig. 13.

the slide, per se, of the invention Fig. 15 is a side elevational viewlooking in the I direction of the line I5I 5 of Fig. 13.

Fig. 16 is an end elevational view looking in i IG-IS of Fig. 13.

rality of spherical buttons I3 along its length.

This bottom flexible strip is cooperative with a. top flexible strip I4-formed with buttonholes I5 for said buttons I3. There is a slide I6 forbuttoning and unbuttoning said buttons I3 with said buttonholes I5. Theconstruction of this slide forms a dominatingportion of this invention.

Y The slide I6 includes a flat C-shaped member in cross section having atop at wall portion I1, a bottom flat wall portion I8, and a bend I8connecting one of the sides of said top and bottom `flat wall portions.This C-shaped member is adapted to be engaged upon the edge portion ofthe bottom strip I 2 as clearly shown in Fig. 2. A bridge-like member 20is mounted on the outer edge of the top wall portion I'I of said C-shaped member and is for the purpose of engaging over the edge portionof said top strip I4, as clearly shown in Fig. 2. This bridgelike member20 has a semi-tubular portion 2l extending longitudinally along itscenter for holding down said top strip portion I4 on said bottom stripportion' I2 when the slide is -being used. This semi-tubular portion 2|furthermore 'forms a passage for the buttons I3 when said strips I2 andI4 land said slide Il are relatively moved longitudinally of each other,as clearly indicated in Fig..3. The bridge-like member I6 is integral atone side,= namely the side 22 with the free edge of the top wall portionI1.

Means is provided for slidably connecting said bridge-like member. withthe edge portion of said top strip I4. 'I'his means includes smalltubular portions 23 and 24 formed along the sides of the bridge-likemember 28 and cooperative with beaded portions 25 and 28, respectivelyformed along the edge portion of said strip I4. These beaded portions 25and 25 are formed by sewing cords 21 or similar strands within casingportions formed from the material of the top strip I4.

The vtop wall portion I1 is also formed with a hollow semi-tubularportion 28 -for the said buttons I3 to pass through when said slide I6is moved relative to the said strips I2 and I4. This semi-tubularportion 28 is located to the front of the bridge-like member 20. ThisSenlitubular portion 28 is formed with an inclined rear end 28 forprogressively lifting said top strip I4 olf of said buttons I3 when theslide I8 is moved in one direction, and dropping said top strip I4 onsaid buttons I3 when the slide I8 is moved in the other direction. Thesemi-tubular closed in Figs. 11 to 16, the slide fastener includes abottom iiexible4 strip I2 having a plurality of spherical buttons I3along its length. This bottom flexible strip is cooperative with a topflexible strip formed with buttonholes Il for said buttons I3. 'I'hereis a slide I5' for buttoning and unbuttoning said buttons 'I3 andbuttonholes I5. The'construction of this slide embodies -themodification of this form of the invention.

The slide I6' comprises a c-shaped member 35, see Fig. 16, having a topwall portion 38 and l portion or arm 39 formed along and projecting lforward from one side of the bridge-like member portion 28 is open atthe bottom through which the buttons engage therein. The bottom strip I2and top strip I4 are sewn together at one of their ends by the stitches30. The slide I5 is engaged on the edge portions of the strips I2 and I4by slightly flexing the top and bottom flat wall portion I1 and I8thereof apart, and engaging the slide in position on the strips. Thebottom strip I2 is also provided with beaded portions 25 and 28 formedwith cords 21, for decorative purposes.

The operation of the device is as follows:

When the slide I6 is moved downwards as illustrated in Fig. 1, thebridge-like member 20 will force the top strip I4 downwards onto thebottom strip I2 so that when the buttons I3 come out from the inclinedend 28 of the semi-tubular portion 28 they will be forced through thebutton-holes I5. Thus, the slide fastener is being closed. Then theslide I6 is moved upwards, the top strip I4 will be cammed upwards bythe inclined rear end 28 of the hollow semi-tubular portion 28 so thatthe top strip I4 is forced free `from the buttons I3.

In Figs. 8 to 10 a modified form of the invention is disclosed whichdistinguished from the prior form essentially in the fact that thebottom fiat wall portion I8' of the slide I6 is provided Withsemi-tubular portions 32 which are cooperative with the beaded portions25 and 26 formed along the edge of the bottom strip I2.

These beaded portions are formed with cords In the modified form of theinvention dis- 38 and being opened at the side for slidably engaging thebead portion 25 formed along the edge of the strip I4. Anothersubstantially identical arm 39' projects from and along the other sideof the bridge-like member 38 and is for the purpose of holding the topstrip I4 down. This portion 39' is solid and not tubular as may be seenfrom an inspection of Fig. 16. 'Ihe bridge-like member 38 has asemi-tubular central portion 40`forvforming a passage for said buttonsI3 when said strips I2 and I4 and slide I6 are relatively movedlongitudinally of each other. The front portion of the top wall portion35 is formed with a hollow semi-tubular 'is identical to the prior formsand it is believed that its operation will be clear.

While I have illustrated and described the preferred embodiments of myinvention; it is to be understood that I do not limit myself to theprecise constructions herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new, and desire tosecureby United States Letters Patent is:

1. In a slide fastener having a strip, having a plurality of sphericalbuttons along its length, and a top nexible strip having buttonholesalong its length for said buttons, a slide for buttoning and unbuttoningsaid buttons, comprising a flat C-shaped member having top and bottomnat wall portions for engaging upon the edge portion of said bottomstrip, a bridge-like member mounted on the outer edge of said top wallportion for engaging over the edge portion of said top strip, means forslidably connecting said bridge-like member with said edge portion ofsaid top strip, said bridge-like member having a semi-tubular portionfor holding :down said top strip on said bottomstrip and forming apassage for said buttons when said strips and slide are relatively movedlongitudinally of each other, and a hollow semi-tubular portion on saidtop wall portion for said buttons to pass through and bottoni flexiblelocated to the front of said bridge-like member and having an inclinedrear end for progressively lifting said top strip off 'of said buttonswhen the slide is moved in one direction and dropping said top strip onsaid buttons when the slide is moved in the other direction.

2. In a slide fastener having a bottom exible strip, having a pluralityof spherical buttons along its length, and a top exible strip havingbuttonholes along its length for said buttons, a slide for buttoning andunbuttoning said buttons, comprising a flat C-shaped member havingtopand bottom flat wall portions for engaging upon the edge portion of saidbottom strip, a bridge-like member mounted on the outer edge of said topwall portion for engaging over the edge portion of said top strip, meansfor slidably connecting` said bridge-like member with said edge portionof said top strip, said bridge-like member having a semitubular portionfor holding down said top strip on said bottom strip and forming apassage for ysaid buttons when said stripsand slide are relatively movedlongitudinally of each other, and a hollow semi-tubular portion on saidtop wall prtion for said buttons to pass through and located to thefront of said bridge-like member and havlim` an inclined rear end forprogressively lifting said top strip oi of said buttons when the slideis moved in one direction and dropping said top strip on said buttonswhen the slide is moved in the other direction, said slide beingconstructed from one piece of sheet material. v

3. In a slide fastener having a bottom iiexible strip, having aplurality of spherical buttons along its length, and a top holes alongits length for said buttons, a slide for buttoning and unbuttoning saidbuttons, comprising a flat C-shaped member'having top and bottom flatwall portions for engaging upon the edge portion of said bottom strip, abridge-like member mounted on the outer edge of said top wall portionfor engaging over the edge portion of said top strip, means for slidablyconnecting said bridgelike member with said edge portion of said topstrip, said bridge-like member having a semitubular portion for holdingdown said top strip on said bottom strip and forming a passage for saidbuttons when said strips and slide are relatively moved longitudinallyof each other, and a hollow semi-tubular portion on said top wallportion for said buttons to pass through and located to the front ofsaid bridge-like member and having an inclined rear end forprogressively lifting said top strip oi of said moved in one directionand dropping said top strip on said buttons when the slide is moved inthe other direction, said means for slidably connecting said bridge-likemember with the edge portion of said top strip comprising semi-tubularportions formed on said bridge-like member and coopera; tive with ribsformed along the length of said strip.

4. In a slide fastener having a bottom iiexible strip,' having aplurality of spherical buttons along its length, and a top' exible striphaving buttonholes along its length for said buttons, a. slide forbuttoning and unbuttoning said buttons, comprising a flat C-'shapedmember having top and bottom iiat wall portions for engaging upon theedge portion of said bottom strip, av bridge-like member mounted on theouter edge of said top wall portion for engaging over the edge portionof said top strip, means for slidably connecting said bridgelike memberwith said edge portion of said top exible strip having button- -forminga passage for strip, said bridge-like member having a semitubularportion for holding down said top strip on said bottom strip and forminga passage for said buttons when said strips and slide are relativelymoved longitudinally of each other, and a hollow semi-tubular portion onsaid top wall portion for said buttons to pass through and located tothe front of said bridge like member and having an inclined rear end forprogressively lifting said top strip oil' of said buttons when the slideis moved inv one direction and on said buttons when the slide is movedin the' other direction, said hollow semi-tubular portion being openalong the bottom through which the buttons extend.

5. In a slide fastener having a bottom flexible dropping said top stripstrip, having a plurality of spherical buttons top flexible strip havingalong its length, and a buttonholes along its length for said buttons, aslide for buttoning and unbuttoning said buttons, comprising a atC-shaped member having top and bottom iiat wall portions for engagingupon the edge portion of said bottom strip, a bridge-like member mountedon the outer edge of said top wall portion for engaging over the edgeportion of said top strip, means for slidably connecting saidbridge-like member with said edge portion of said top strip, saidbridge-like member having a semi-tubular portion for holding down saidtop strip on said bottom strip and said buttons when said strips andslide. are relatively moved longitudinally of each other, a hollowsemi-tubular portion on said top wall portion for said buttons to passthrough and located to the front of said bridgelike member and having aninclined rear end for progressively lifting said top strip oi of saidbuttons whenthe slide is moved in one direction and dropping said topstrip on said buttons when the slide is moved in the other direction,and

means for slidably connecting the bottom frame wall portion of saidC-shapedmember with said bottom strip.

6. In a slide fastener having a bottom flexible strip, having aplurality of spherical buttons alo'ng its length, and a top flexiblestrip having buttonholes along its length for said buttons, a slide forbuttoning and unbottoning said buttons, comprising alv at C-shapedmember having top and bottom fiat wall portions for engaging upon theedge portion of said bottom strip, a bridgelike member mounted on theouter edge of said top wall portiqnl for engaging over the edge portionof said top strip, means for slidably connecting said bridge-like memberwith said edge portion of said top strip, said bridge-like member havinga semi-tubular portion for holding down Vsaid top strip on said bottomstrip and forming a passage for said buttons-when said strips and slideare relatively moved longitudinally of each other, ay hollowsemi-tubular portionon said top wall portion for said butto'ns to passthrough and located to the front of said bridge-like member and havingan inclined rear end for progressivev said buttons when the slide isalong the length of said bottom.

length of said bottom strip, said buttons being located between saidbeaded portions.

8. In a slide fastener having a bottom flexible strip having a pluralityof spherical buttons along its length', and a top exibie strip havingbuttonholes along its length for said buttons, a.

like member mounted on the outer edge of said A top wall portion forengaging over the edge portion of said top strip, means for slidablyconnecting said bridge-like member with said edge portion of said topstrip, said bridge-like member having a semi-tubular portion for holdingdown said top strip on said bottom strip and forming a passage for saidbuttons when said stripsiand slide are relatively moved longitudi nallyof each other, ahollow semi-tubular portion on said top wall portion forsaid buttons to pass through and located to the front of saidbridge-like member and having an inclined rear end for progressivelylifting said-top strip of! of said buttons when the slide is moved inone dislide ior buttoning and unbuttoning said buttons, comprising aC-shaped member having top and bottom'wall portions for engaging uponthe edge portion'ot said bottom strip, a bridge-like member mounted onthe outer edge of said top wall portion for engaging over the edgeportion of said top strip, means for slidably connecting saidbridge-like member with said edge portion of said top strip, saidbridge-.like member having a simi-tubular portion iorholding down saidtop strip on said bottom strip and forming a passage for said buttonswhen said strips and slide are relatively moved longitudinally of eachother, and a hollow semi-tubular portion on said top i wall portion forsaid buttons to pass through and rection and dropping said top strip onsaid but. .v

tons when the slide' is moved in the -other direction, and means forslidably connecting the bottom frame wall portion of said C-shapedmember with said bottom strip, comprising semi-tubular portions formedon said bottom at wall portion and engaging beaded portions formed alongthe 4 located to the frontoi said bridge-like member and having aninclined rear end for progressively` lifting said tc o strip of! of saidbuttons when the slide isl moved in one direction and dropping said topstrip on said buttons when the slide is moved in the other direction.

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